Hi, all
does anyone traced the source of the < > mail?
we have the same problem with < > stucked in the queue, after closed the relay, but when I examined the log, I found that this seem be a NDR but... not really a NDR, I don't know why exchange generated this, because I found for each < > email there is entry in the receiving log, then the exchange sends a email back to the sender but just without the sender info.
does anyone had the similar situation?